Solder-applying machine



s. N. TEVANDER. SOLDER APPLYING MACHINE.

APPLICATION HLED DEC. 26, I916.

1 58,480. Patented Nov. 9, 1920.

4 SHEETS-SHEET I.

S. N. TEVANDER.

SOLDER APPLYING MACHINE.

APPLICATION FILED 05c. 26; 1916.

Patented Nov. 9, 1920.

4 SHEETS-SHEET 2.

S. N. TEVANDER.

SOLDER APPLYING MACHINE.

APPLICATION FILED DEC.26. I916.

Patented Nov. 9, 1920.

4 SHEETQ-SHEET 3.

S. N. TEVANDER.

SOLDER APPLYING MACHINE.

APPLICATION FILED 050.25, 1916.

' 1,358,480. Patented Nov. 9, 1920.

4 SHEETS-SHEET 4.

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swan 1v. mnvnivnnn, or MAYWOGD, ILLINOIS. assume to interest can con.

PANY, OF NEW YURK, N. Y., A CORYOBATION OF NEW JERSEY.

SOLDIER-APPLYING MACHINE.

Specification of Letters Patent.

Patented Nov. 9, 1920.

To aZZ "to/tom it may concern:

ii e it known that I, SWAN N. Tnvanonn, a citizen of the United States,residing in Maywood, in the county of Cool: and State of Illinois, haveinvented a new and useful improvement in Solder-Applying Machines, ofwhich the following is a specification.

This invention relates in general to solder applying machines but hasmore particular reference to machines provided for the application ofsolder to the edges of the can body blanks, which are to be folded intothe seam either at the side of the body or to be crimped in the flanges01"- the end closure.

A principal object of this invention is the provision of a wellorganized and eflective machine for the automatic applying of solder tothe blank edges as they are conveyed past certain operative parts.

Another object 01 the invention is the provision of a machine of thischaracter which will operate without wasting solder and Without applyingmore solder than is desirable to the body blanks.

A still further object of ti invention is the provision of a machinewhich will permit the soldered edne to be operatively con nected with anadjacent edge through a mere sweating operation after the edges havebeen placed in the desired relations in other words, to provide forsubsequent soldering without the application of flux material at thetime the joint is heated.

Other objects and advantages of the in volition will be apparent as itis better understood from the following description when considered inconnection with the accoinpanyino' drawing; illustrating a preferredembodiment thereof.

On the drawing,

Figure 1 is a perspective view of a ma chine embodying my presentinvention;

Fig. 2 is a top plan view thereof;

.Fig. 3 is a longitudinal vertical section through the same;

Fig. 4 is a an enlarged plan VieWI' 5 is a section taken of Fig.4;

F in. 6 is a section taken on the lines 6'-'6 of Fig. 4;

F in. 7 is a section taken on of Fig. 4;

Fig. 8 is a section taken on the lines 8-8 of F ig. 4; and

the lines 7-7 on the lines 5-5 F ig.'9 is, an enlarged side elevation oithe ratchet for controlling the solder teed.

For the purpose of illustrating my invention I have shown on the drawinga machine comprising a table 21 supported in any suitable t'ashionacross which continuously moves a conveyer 22 which conveys the blanksduring the solderino: operation. The blanks are fed in from the right,viewingthe figures, and are accurately directedin their movement byguides 23 and 24 extend 111g across the table and on opposite sides oithe path of travel of the conveyer. One of these guides 23 is fixed,being held by suitable ;tastening devices 25 upon the table. The otherguide 24 is carried in slotted brackets26 through the slots of whichexitend set bolts 27 permitting adjustment of this guide toward and fromthe uidc 23 to render the apparatus usable with can body blanks ofdiiiering dimensions. The edge to be soldered travels adjacent the guide23 and it will be noted therefore that blanks ot diiierent lengths canbe carried through the machine through the adjustment of the guide 24and without alterations of the posit-ions oi the soldering and fluxingdevices, to be presently described.

he conveyer comprises, in the present instance, a chain 31 having aplurality of properly spaced dogs 32 adapted toengage at the rear edgeof the can body blanks to cause their advance as the conveyor moves.This conveyer takes over a positively driven pulley or sprocket wheel 33fixed upon a constantly driven rotating shaft 34 mounted in suitablebracket v beneath the delivery end of the table. The shaft 34 has a warmwheel 35 meshing with a worm 36 on a shaft 37 also carried beneath thetable. The "hai't 37 receives its movement throu h a bevel gearconnection 38 from a shaft 39 mounted inbrackets 41 and carrying pulleys.2 and 43. one of the lat er being an idle and the other a drivinpulley. The blank: reedin from the rirz'ht} View ing Figs. 1 and 2,first pass a pre-fiuxing devi ev consisting of a tank 44 of fluxing'material and adapted to feed the same through a. valve 45 on to afiuxinn roller 46avl1ich rolls across an edge of" the blanlrand appliesthe flux. Next the blank arrives at the soldering" iron 47 pivoted at48. This soldering iron is moved vertically into and out of normalposition and at predetermined intervals. The purpose of this movement isto control the delivery of solder to the edge of the can body blank, itbeing capable of adjustment so that it may apply solder across theentire edge or throughout merely a limited part thereof, it beingpossible to lower the soldering iron into contact with the-blankinwardly of. the edgea slightdistance and to lift it out of contact justbefore the rear edge passes under the iron. The mechanism for effectingthis comprises a bell crank 4 9 pivoted at 51 in brackets 52 andconnected by a lifting link 53 with the forward edge of the solderingiron.- The other arm of the bell crank is connected by a connecting rod54 with a second bell crank 55, the latter bell crank being providedwith a roller 56 adapted to ride upon a cam 57 mounted upon the shaft3a. The dwell of this cam, as may be seen in Fig. 5 is such as to permitthe soldering iron to be lowered by gravity on to the can" body blankthroughout a predetermined part of the rotation of the shaft 34, whichbeing actuated by the means driving the conveyer, produoes the desiredtiming of the action of the soldering iron. Alteration of this cam orreplacing it by another permits adjustment of the solderin iron so thatits period of action can be limited as desired. The soldering iron isheated by gas from a pipe 58 having branches 59 for the burners. Thesolder used in the embodiment of the in vention shown on the drawing isof the wire type and means are provided to control its feed, which meanswill now be described.

The solder wire 61 is taken from any suitable source of supply andis ledto an idle roll 62 being guided thereto by an eye 63. From the roll 62it passes between two positively driven friction rolls 6% and 65 into aguide or pipe 66 which directs it against the soldering iron 47. Theaction of the rolls 6% and 65 is timed so that solder is deliveredperiodically and as it may be required. The timing and delivery of thesol der is controlled by a ratchet wheel 67 upon a shaft 68 on whichshaft the roll 65 is fixed. A bell crank 69 is loosely fulcrumed on theshaft 68 and one arm carries a pawl 71 with its other arm 70, which rodthrough a bell crank 73, connecting rod 74 and a third bell crank 75rereivesaction from a cam 76'on shaft 34:. The cams 76 and 57 are soarranged that the "cam 76 acts slightly in advance of the cam 57 so thatsolder is fed just before the. iron is lowered each time into operativeposition, and the arm; 70 is slotted to permit adjustment of the throwof the pawl.

Means are provided to prevent the feeding of solder when no can bodyblank passes under the iron and these means in the present instancecomprise a member adapted to be moved by the can body blank as itapproaches soldering position. This member in the present instancecomprises a roller 77 mounted on a lever 77 which is adapted to be swungabout. its pivot by the action. of the blank upon the roller. This leveris connected by an 78 with a link 79 on a shaft 81 (Fig 8). 'The shaft81 carries a 'detent 82 mounted alongside the pawl 71 and this pawl hasa pin 83 (Fig. 7) adapted to be engaged by the detent 82 to prevent itsengagement with the ratchet wheel 67 when no can body is passing underthe iron. In other words for the pawl 71 to engage the ratchet 67 theroller 77 must be moved aside by a can body blank. Solder wire feedrolls 64 and 65 have cooperating pinions 84k to cause them both tooperate in unison and under the power of the ratchet wheel 67. Two rolls85 and 86 engage the can edge after it has left the soldering iron tostraighten out any warp age there may be and after passing these rollsthe blank passes under a second fluxing device to flux the solder edge.This. fluxing device comprises tank 87 delivering to a flux applyingmember 88. After the cans pass this flux applying device they arrivefatthe end of the travel of the conveyer31 and are removed from the tableby the auxiliary belt or conveyer 89 taking over an idle pulley'91 and adriven pulley 92 on shaft 8%.

It is intended that the operator stand at the machine away from'thepulleys l2 and 43 and a belt shifting device comprising a shaft 93engaging a belt shifting arm 94: is provided. It is believed desirableto tilt the table somewhat from end to end; that is to make it a littlehigher at one end than at the. other. in order that gravity may aid inthe distribution of the solder.

It is thought that the invention and many of its attendant advantageswill be understood from the foregoing description, and it will beapparent that various changes be made in. the form, construction andarrangement of the parts without departing from the spirit and scope ofthe invention or sacrificing any of its material. advantage -the formhereinbefore described being merely a preferred embodiment thereof.

1 claim 1. In a solder applying machine the combination of, a table, aconveyor movable along said table for conveying can body blanks in theflat, a soldering iron under which said can body blanks are conveyed,

means for applying flux to the edge of each can body blank before itreaches the soldering iron, and means for applying solder to said edge.

Lass 48o 2. In a solder applying machine the combination of, a table, aconveyer movable over said table for-conveying can body blanks in theflat, a soldering iron under which said can body blanks are conveyed,means for supplying solder to said iron, and means for limiting theoperation of said soldering iron at predetermined periodic intervals andwhile the blanks are thereunder.

3. In a solder applying machine the combination of, a table, a conveyermovable across said table for conveying can body blanks in the flat, anelongated soldering iron extending substantially parallel with thetable, means for delivering solder to said iron at a predetermined rate,and means for interrupting the delivery of said solder at predeterminedperiodic intervals.

4. In a solder applying machine the combination of, a table, a conveyermovable across said table for conveying can body blanks in the flat, asoldering iron and fluxing devices located upon each side thereof in thedirection of travel of said blanks to apply flux both before and aftersolder is applied to said blanks by said iron.

5. In a solder applying machine the combination of, a table, a conveyermovable across said table for conveying can body blanks in the flat, asoldering iron, means for applying solder to said iron, and a deviceoperable by the edges of said blanks for interrupting the delivery ofsolder between successive blanks.

6. In a solder applying machine the combination of, a table, a conveyermovable across said table for conveying can body blanks in the flat, asoldering iron, and means for feeding solder to said iron at the rate ofits application to said blanks, and means for interrupting the action ofsaid feeding between successive blanks.

7. In a solder applying machine the conr bination of, a. table, aconveyer movable thereacross for conveying can body blanks in the fiat,a horizontally arranged vertically movable soldering iron for applyingsolder to an edge of said blanks, means for applying solder to saidiron, and means for lifting said iron away from operative positionbetween successive blanks.

8 In a solder applying machine the combination of, a table, a conveyermovable thereacross for conveying can body blanks in the fiat, ahorizontally arranged vertically movable soldering iron, means i' orsupplying solder to said iron, and devices for lowering said iron tooperative position when the blank is located therebeneath.

9. In a solder applying machine the combination of, a table, a conveyermovable thereacross for conveying can body blanks in the fiat, ahorizontally arranged vertically movable soldering iron, means forsupplying solder to said iron, and devices for moving said iron tooperative position throughout a part of the travel of a blank beneathsaid iron.

10. In a solder applying machine the combination of, a table, a conveyermovable thereacross for conveying can body blanks in the flat, ahorizontally arranged vertically movable soldering iron, means for applying solder to said iron at the rate of its application, and means forinterrupting the delivery of the solder and moving said iron toinoperative position between successive blanks.

11...In a solder applying machine the combination of, a table, aconveyer movable continuously thereacross for conveying can body blanksin the flat, a soldering iron for applying solder to an edge of saidblanks, and means for supplying solder to said iron.

12. In a machine for applying solder to the edges of sheet metal blanks,the combination of a soldering iron extending along the path to'befollowed by the edge of the blank, a movable device arranged near thesoldering iron and in said path and adapted to be held continuously outof said path by the edge of the blank in one position during the passageof the blank, a guide at the side of said path engaged by the edge ofthe blank, whereby said edge is maintained in said path, the guide beingconstructed to allow the said movable device to engage the blank asdescribed, means for feeding solder to said iron, and means controlledby said movable device for stopping the action of said solder-feedingmeans when the edge of a blank is not following said path.

13. In a solder applying machine the combination of, a table, asoldering iron, means for moving can body blanks over said table andunder said soldering iron, a guide for said blanks arranged on saidtable to leave a lateral open space, a ratchet for feeding wire solderto said iron, an intermittently operating pawl for operating saidratchet, and means comprising a roller acted on by the edges of theblanks and arranged in said space to be actuated by the edges of saidblanks for holding said pawl out of engagement except when a can bodyblank is to be presented to said iron.

14. In a solder applying machine the combination of, a soldering ironelongated in the direction of the movement of the can body blanks andmovable at one end toward and from the blanks, a device for feedingsolder to said iron, and intermittent controls for said iron and saidsolder feeding device, the said controls being made operative by theedges of said blanks and feeding solder to said iron slightly in advanceof its operation.

15. In a solder applying machinethe combination of, a table and conveyermovable thereacross, adjustable guides for the opposite edges of canbody blanks carried by. said conveyer, and an adjustable soldering ironfor feeding solder to an edge of each blank carried by said conveyer.

16. The Combination of a fiat table adapted to hold can body blanks inthe flat fixed means for guiding the edges of said blanks, a conveyerfor moving said blanks along the table, a soldering iron against whichsaid blanks are rubbed by said conveyer, and means for supplying solderto said iron;

17. The combination of a flat table adapted to hold can body blanks inthe flat, fixed means for guiding the edges of said blanks,'a conveyerfor moving saidblanks along the table, an elongated soldering ironextended substantially parallel with the table and along the elongatedunder edge of SWVAN N. TEVANDER.

' witnesses.

Witnesses: M. EDNA BARRY, ETHEL' WOOD. n

